Select breeding method of early-maturing high-nutritious red-peel red-fruit-pulp colorized potato

Abstract

The invention discloses a select breeding method of an early-maturing high-nutritious red-peel red-fruit-pulp colorized potato. The method comprises the following steps: selecting high-quality early-maturing high-yield broad-application potato varieties to cross-fertilize with oxidation-resistant potato varieties highly containing anthocyanin, polyphenol and the like through sexual hybridization, after single-plant system selection and many years field evaluation of asexual generation, conducting stem peel and fruit pulp color screening on early separate separation, conducting screening of agronomic trait, yield trait, mature period and the like on advanced lines, and breeding red-peel red-fruit-pulp early-maturing new potato varieties being excellent in agronomic traits, rich in antioxidant active substances and capable of maturing in 65 days. The potato has high quality, fragrant taste after steaming, delicate taste, dry matter content of 19.3%, starch content of 13.6%, high anthocyanin content, and polyphenol and antioxidant activity reaching to 800 to 1100mg / kg. The potato cultivated in the invention enriches the varieties of colorized potatoes and expands the planting area of colorized potatoes.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a breeding method for early-maturing high-nutrition red-skinned red-fleshed colorful potatoes. Background technique [0002] Potato is an important food crop in the world, ranking fourth after wheat, rice and corn. However, my country's potato planting area and total output rank first in the world, and it has an important strategic position in food security. Judging from the varieties of potatoes bred in the world, most of them are ordinary white or yellow varieties, with few red skins and red meat, and they are hardly seen in the market. The research on colored potatoes in my country has just started. Most of the individual colored potatoes seen in the market are purple imported varieties, and there are very few original varieties with independent intellectual property rights. And the color potato that existing foreign country introduces all is the late-maturin...

AI Technical Summary

Problems solved by technology

The research on colored potatoes in my country has just started. Most of the individual colored potatoes seen in the market are purple imported varieties, and there are very few original varieties with independent intellectual property rights.

However, the colorful potatoes introduced from abroad are all late-maturing varieties with a long maturity period.

Foreign varieties are not strong in stress resistance, poor in adaptability, and extremely low in yield, which cannot meet the needs of the domestic market and production. Therefore, there is an urgent need to breed a batch of species with independent intellectual property rights, good quality, high yield, and early maturity, which are suitable for our country. New high-quality and colorful potato varieties grown in different ecological zones